EPJ Web of Conferences (Jan 2018)

Study of the contribution of the 7Be(d, p) reaction to the 7Li problem in the Big-Bang Nucleosynthesis

  • Inoue A.,
  • Tamii A.,
  • Abe K.,
  • Adachi S.,
  • Aoi N.,
  • Asai M.,
  • Fukuda M.,
  • Gey G.,
  • Hashimoto T.,
  • Ideguchi E.,
  • Isaak J.,
  • Kobayashi N.,
  • Maeda Y.,
  • Makii H.,
  • Matsuta K.,
  • Mihara M.,
  • Miura M.,
  • Shima T.,
  • Shimizu H.,
  • Tang R.,
  • Dinh Trong T.,
  • Yamaguchi H.,
  • Yang L.

DOI
https://doi.org/10.1051/epjconf/201818402007
Journal volume & issue
Vol. 184
p. 02007

Abstract

Read online

Our research goal is to measure the 7Be(d, p) reaction to shed light on the 7Li problem in the Big-Bang Nucleosynthesis. We are developing an unstable 7Be target for a high-resolution measurement of the 7Be(d, p)8Be reaction. We plan to compare two methods to producethe 7Be target: (1) Activation method, and (2) Implantation method. We performed an activation methodexperiment at the Van de Graaff at Osaka University, and obtained the cross-section data. A second experiment to obtain more accurate data will take place at the Tandem Electrostatic Accelerator, Kobe University. We have also made a 7Be target with implantation method at CRIB, Center for Nuclear Study, Univer-sity of Tokyo. An experiment to measure the (d, p) reaction with the implanted target is scheduled for 2018 at Japan Atomic Energy Agency, tandem facility.